×

Method to assign upstream timeslots and codes to a network terminal and medium access controller to perform such a method

  • US 6,813,255 B1
  • Filed: 09/07/1999
  • Issued: 11/02/2004
  • Est. Priority Date: 08/24/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method to assign upstream timeslots and codes to a network terminal of a plurality of network terminals in a communications network comprising a central station coupled to said plurality of network terminals via the cascade connection of a common transmission channel and respective individual network terminal channels, said network terminals transmitting upstream data packets to said central station in a time multiplexed way over said common transmission channel using said upstream time slots, and said communications network further comprising a medium access controller, said method comprises:

  • assigning at least one code of a plurality of codes available within said communications network for encoding said upstream data packets to be transmitted by said network terminals for inclusion within a network terminal grant assigned to said network terminal, determining an activity parameter related to the load within said network, determining a delay parameter related to delay sensitive connections within said communications network, determining physical interference parameters related to degrees of synchronization between said network terminals and said individual network terminal channels of said communications network, selecting one of a plurality of code allocation procedures for generating said network terminal grant, the selection being based upon the value of said activity parameter and the value of said delay parameter and said physical interference parameters between said network terminals and said individual network terminal channels of said communications network, generating a network terminal grant, wherein said network terminal grant is generated by said medium access controller and said network terminal grant assigns said upstream time slots to one of said network terminals, and upon receipt of said network terminal grant, said network terminal will encode upstream data packets within said network terminal with said at least one code prior to upstream transmission of said upstream data packets of said network terminal to said central station.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×